Now u can hack idea forfree net i tried this trick on three sims and this works.First make balance rs25 and activate plan bydialing *789*11# and ur 19rs will be deduct.Now before 11.55pm connect net using uc web(any version support open in background) and not disconnect the net i mean to say that not exitfrom browser but if u want to go back then press option and select open in background.Butif u disconnect the net uwill not get the free net.u can use free net bythis for method unlimited day